"i know that it is possible"
Don't think so.
Firstly, what do you expect to achieve with a second router? You will still have only one internet connection and that's what will determine the bandwidth available to your network.
Secondly, wireless routers incorporate a Wireless Access Point, that's what makes them "wireless". Computers use a Wireless Network Adapter to connect with the router's Wireless Access Point, but two Wireless Access Points (i.e. routers) cannot connect directly themselves, unless the particular router has the option to function as a Wireless Network Bridge.
Wireless Access Point - allows wireless devices to connect to a wired network.
Wireless Network Bridge - allows a wired network to connect to a wireless network.